Yes, any kind of force(contact or non-contact) can act as a centripetal force as long as it is a attractive force acting between two bodies
Answer:
P = 589 (W)atts
Explanation:
work done = 30.0 kg(9.81)N/kg(10.0) m = 2,943 J
Power is the rate of doing work
P = 2943 J / 5 s = 588.6 J/s
Answer:
E=3 x 10^4 N/c
Explanation:
The electric field strength can be found out disk with a uniform positive surface charge density by
σ= charge density
r= radius of the disk
z= position in which we have to find electric field = 15 cm
ε_0= constant ( vacuum permitivity)
putting values we get
solving we get
E=30000 N/c
E=3 x 10^4 N/c
Answer:
Every option is correct except option C.
Option A is the most accurate statement of the law
Explanation:
C is incorrect because momentum of the SYSTEM is conserved and not necessarily that of the individual objects in the System.
For option B, momentum is a vector quantity but it does not describe the principal of conservation of momentum. Option D is also correct but does not state anything about the conservation of momentum.
